Umbilical herniorrhaphy in adult cattle using polypropylene mesh for abdominal reinforcement – Report of two cases

Umbilical hernia is an omphalopathy that affects calves, with low incidence, but significant importance on farms. It is characterized by total or partial protrusion of abdominal contents through a defect in the abdominal wall. Surgical treatment is recommended in cases of large hernial rings, and the use of implants such as polypropylene mesh is indicated for defects greater than 15 cm. This report describes the umbilical herniorrhaphy procedure associated with polypropylene mesh in two Holstein heifers. An 18-month-old heifer (560 kg) presented with a 23 cm umbilical hernia, and a 10-month-old heifer (403 kg) presented with a 14 cm defect. Both umbilical hernias were classified as true, reducible, and non-contaminated. Closed herniorrhaphy was performed using a modified horizontal mattress suture pattern with a double 0.50mm nylon, followed by reinforcement with polypropylene mesh fixed to the outer sheath of the rectus abdominis muscle. Postoperative management included antibiotic therapy, anti-inflammatory and analgesic drugs, and daily wound care. Both animals showed satisfactory recovery, with no complications and good surgical wound healing.